To all,
I have appx. 15 - 20 Haas machines in production. I have learned many machine repairs from everyone out there by using this site. I am new to the communication end of the forums, so please bare with me. OK, I have a '96 VF-9, started a week ago with a "Low Pressure Trans Oil" alarm (# 179). First Step- Changed the Pressure switch. I started the machine and noticed that there is no oil movement in the cooling lines. I drained the oil out of the gearbox and flushed thru each line to be sure that nothing was plugged up. Re-filled with DTE-25 oil. No change. Second Step - Changed the Pump Assy (# 93-3260B). Restarted the machine again and noticed that the oil is now fluctuating up and down in the "pick up" tube to the pump. I then primed the pump and it will pump for appx. a minute or so and then fluctuates again. I called HFO and they don't have any resolution for the problem. I feel it may be a bad pump unit. Not quite sure how to confirm. Does anyone know of any filter screens, inside the gearbox, on the pick-up tube? How is the tube mounted inside the gearbox? I really don't want to pull the spindle assy., if someone has seen these symptoms before, and can give me some insight. I am open to all suggestions. Thanks in advance. Joe